The Sony NP-FW50 Lithium-Ion Rechargeable Battery is unique in its design since it not only supplies power to your camera but will display the remaining battery capacity. Small and lightweight, lithium-ion batteries can be charged or discharged at any time without developing memory effects.
Amp-Hours: 1020 mAh
Dimensions: 1.25 x 0.75 x 1.8" / 3.1 x 1.8 x 4.5 cm
Sony Alpha A6400, A6500
Sony Alpha A7 II, A7R II, A7S II